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paddlepaddle--paddle/paddle/phi/kernels/gpu/rmsprop_kernel.cu
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// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "paddle/phi/kernels/rmsprop_kernel.h"
#include "paddle/phi/backends/gpu/gpu_context.h"
#include "paddle/phi/core/kernel_registry.h"
#include "paddle/phi/kernels/impl/rmsprop_kernel_impl.h"
namespace phi {
template <typename T>
struct RmsFunctor<T, GPUContext> {
RmsFunctor(const GPUContext &dev_ctx,
const DenseTensor &param,
const DenseTensor &mean_square,
const DenseTensor &grad,
const DenseTensor &moment,
const DenseTensor &learning_rate,
const optional<DenseTensor> &mean_grad_opt,
const optional<DenseTensor> &master_param,
float epsilon_t,
float decay_t,
float momentum_t,
bool centered,
bool multi_precision,
DenseTensor *param_out,
DenseTensor *moment_out,
DenseTensor *mean_square_out,
DenseTensor *mean_grad_out,
DenseTensor *master_param_outs) {
auto &p_tensor = param;
auto &ms_tensor = mean_square;
auto &lr_tensor = learning_rate;
auto &mom_tensor = moment;
auto &grad_tensor = grad;
size_t limit = static_cast<size_t>(ms_tensor.numel());
DenseRmspropGradFunctor<T> grad_func(grad_tensor.data<T>());
funcs::ForRange<GPUContext> for_range(dev_ctx, limit);
using MT = typename MPTypeTrait<T>::Type;
MT *master_out_data = multi_precision
? dev_ctx.template Alloc<MT>(master_param_outs)
: nullptr;
if (centered) {
auto mg_tensor = mean_grad_opt.get_ptr();
if (mg_tensor) {
PADDLE_ENFORCE_EQ(
mg_tensor->Holder(),
mean_grad_out->Holder(),
common::errors::InvalidArgument(
"MeanGrad and MeanGradOut must be the same Tensor"));
} else {
PADDLE_ENFORCE_EQ(
mg_tensor,
mean_grad_out,
common::errors::InvalidArgument(
"MeanGrad and MeanGradOut must be the same Tensor"));
}
for_range(CenteredRmspropFunctor<T, MT, DenseRmspropGradFunctor<T>>(
dev_ctx.template Alloc<T>(param_out),
dev_ctx.template Alloc<MT>(mean_square_out),
dev_ctx.template Alloc<MT>(moment_out),
dev_ctx.template Alloc<MT>(mean_grad_out),
lr_tensor.data<MT>(),
master_out_data,
static_cast<MT>(decay_t),
static_cast<MT>(epsilon_t),
static_cast<MT>(momentum_t),
grad_func));
} else {
for_range(UncenteredRmspropFunctor<T, MT, DenseRmspropGradFunctor<T>>(
dev_ctx.template Alloc<T>(param_out),
dev_ctx.template Alloc<MT>(mean_square_out),
dev_ctx.template Alloc<MT>(moment_out),
lr_tensor.data<MT>(),
master_out_data,
static_cast<MT>(decay_t),
static_cast<MT>(epsilon_t),
static_cast<MT>(momentum_t),
grad_func));
}
}
};
template struct RmsFunctor<GPUContext, float>;
template struct RmsFunctor<GPUContext, double>;
template struct RmsFunctor<GPUContext, float16>;
} // namespace phi
PD_REGISTER_KERNEL(rmsprop,
GPU,
ALL_LAYOUT,
phi::RmspropDenseKernel,
float,
double,
phi::float16) {}
PD_REGISTER_KERNEL(rmsprop_dense_param_sparse_grad,
GPU,
ALL_LAYOUT,
phi::RmspropSparseKernel,
float,
double,
phi::float16) {}